Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933710AbcCRP4R (ORCPT ); Fri, 18 Mar 2016 11:56:17 -0400 Received: from mail-wm0-f53.google.com ([74.125.82.53]:38502 "EHLO mail-wm0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933569AbcCRP4N (ORCPT ); Fri, 18 Mar 2016 11:56:13 -0400 Subject: Re: Nokia N900 - audio TPA6130A2 problems To: Sebastian Reichel References: <20160316144709.GA3389@earth> <56E9A42B.3010209@gmail.com> <56E9A6D9.7000003@ti.com> <56E9B910.7000904@gmail.com> <56EA6282.5050501@ti.com> <56EAE8C3.1080301@gmail.com> <56EBD96A.8090505@ti.com> <1458306829.11841.2.camel@Nokia-N900> <20160318133641.GB16747@earth> <56EC0676.3000509@gmail.com> <20160318150404.GA30829@earth> Cc: Peter Ujfalusi , Grygorii Strashko , =?UTF-8?Q?Pali_Roh=c3=a1r?= , Jarkko Nikula , Tony Lindgren , Lars-Peter Clausen , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Pavel Machek , Aaro Koskinen , Nishanth Menon , merlijn@wizzup.org From: Ivaylo Dimitrov Message-ID: <56EC2517.7030301@gmail.com> Date: Fri, 18 Mar 2016 17:56:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <20160318150404.GA30829@earth> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 377 Lines: 21 Hi, On 18.03.2016 17:04, Sebastian Reichel wrote: > Did you by chance also test adding a delay after setting the power > gpio? According to the datasheet: > > Start-up time from shutdown: typical 5ms > :) if (data->power_gpio) { dev_err(&tpa6130a2_client->dev, "!!!!!!!!!!!! GPIO SET: %d\n", ret); mdelay(10); gpiod_set_value(data->power_gpio, 1); mdelay(10); } Ivo